Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992dhrl.nasaq....a&link_type=abstract
In its Development of a High Resolution Liquid Xenon Imaging Telescope for Medium Energy Gamma Ray Astrophysics 6 p (SEE N93-155
Astronomy and Astrophysics
Astronomy
Algorithms, Electron Scattering, Gamma Ray Telescopes, Liquefied Gases, Monte Carlo Method, Xenon, Compton Effect, Gamma Ray Astronomy, High Resolution, Pair Production, Sensitivity, Spatial Resolution, X Ray Telescopes
Scientific paper
Extensive Monte Carlo modeling of a coded aperture x ray telescope based on a high resolution liquid xenon TPC has been performed. Results on efficiency, background reduction capability and source flux sensitivity are presented. We discuss in particular the development of a reconstruction algorithm for events with multiple interaction points. From the energy and spatial information, the kinematics of Compton scattering is used to identify and reduce background events, as well as to improve the detector response in the few MeV region. Assuming a spatial resolution of 1 mm RMS and an energy resolution of 4.5 percent FWHM at 1 MeV, the algorithm is capable of reducing by an order of magnitude the background rate expected at balloon altitude, thus significantly improving the telescope sensitivity.
Aprile Elena
Bolotnikov A.
Chen Daguang
Mukherjee Rajesh
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